5ECG

Crystal structure of the BRCT domains of 53BP1 in complex with p53 and H2AX-pSer139 (gammaH2AX)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.207 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

ATM Localization and Heterochromatin Repair Depend on Direct Interaction of the 53BP1-BRCT2 Domain with gamma H2AX.

Baldock, R.A.Day, M.Wilkinson, O.J.Cloney, R.Jeggo, P.A.Oliver, A.W.Watts, F.Z.Pearl, L.H.

(2015) Cell Rep 13: 2081-2089

  • DOI: 10.1016/j.celrep.2015.10.074
  • Primary Citation of Related Structures:  
    5ECG

  • PubMed Abstract: 
  • 53BP1 plays multiple roles in mammalian DNA damage repair, mediating pathway choice and facilitating DNA double-strand break repair in heterochromatin. Although it possesses a C-terminal BRCT2 domain, commonly involved in phospho-peptide binding in o ...

    53BP1 plays multiple roles in mammalian DNA damage repair, mediating pathway choice and facilitating DNA double-strand break repair in heterochromatin. Although it possesses a C-terminal BRCT2 domain, commonly involved in phospho-peptide binding in other proteins, initial recruitment of 53BP1 to sites of DNA damage depends on interaction with histone post-translational modifications--H4K20me2 and H2AK13/K15ub--downstream of the early γH2AX phosphorylation mark of DNA damage. We now show that, contrary to current models, the 53BP1-BRCT2 domain binds γH2AX directly, providing a third post-translational mark regulating 53BP1 function. We find that the interaction of 53BP1 with γH2AX is required for sustaining the 53BP1-dependent focal concentration of activated ATM that facilitates repair of DNA double-strand breaks in heterochromatin in G1.


    Organizational Affiliation

    Cancer Research UK DNA Repair Enzymes Group, Genome Damage and Stability Centre, School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9RQ, UK. Electronic address: laurence.pearl@sussex.ac.uk.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cellular tumor antigen p53AB225Homo sapiensMutation(s): 0 
Gene Names: TP53P53
Find proteins for P04637 (Homo sapiens)
Explore P04637 
Go to UniProtKB:  P04637
NIH Common Fund Data Resources
PHAROS  P04637
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Tumor suppressor p53-binding protein 1CD262Homo sapiensMutation(s): 0 
Gene Names: TP53BP1
Find proteins for Q12888 (Homo sapiens)
Explore Q12888 
Go to UniProtKB:  Q12888
NIH Common Fund Data Resources
PHAROS  Q12888
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
SEP-GLN-GLU-TYREF4Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
E,FL-PEPTIDE LINKINGC3 H8 N O6 PSER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.207 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.264α = 90
b = 94.498β = 90
c = 131.742γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Cancer Research UKUnited KingdomC302/A14532

Revision History 

  • Version 1.0: 2015-12-16
    Type: Initial release
  • Version 1.1: 2015-12-30
    Changes: Database references